So far, Blackbeard has been the only character in One Piece to use two Devil Fruits in battle. As the manga reveals in the current chapter, there is now another person who uses two different Devil Fruits.
Warning, Spoiler! Here you will find information about a character from Chapter 1170 of the One Piece manga.
What kind of character is this? On the island of giants, the Straw Hat crew encounters Loki. He is the prince of Elban and the son of King Harald. The giant is forced to stop his father and uses the power of two Devil Fruits to do so.
What are these Devil Fruits? On one hand, the giants have been guarding their national treasure for many years, which is a Devil Fruit. In the chapter, Loki manages to eat this Devil Fruit, which is no easy task.
Because the Devil Fruit is essentially guarded by a second Devil Fruit. This is the hammer Ragnir, which can transform into a squirrel hybrid creature. It is not known whether the hammer ate a squirrel fruit or a squirrel that ate a hammer fruit.
However, after Loki proves how strong he is, the hammer recognizes him as its new owner. So Loki has the powers of the Devil Fruit he ate and the hammer as a weapon. His eaten Devil Fruit has also not been revealed yet. However, it can be seen how he transforms into a large, black entity.
Such a special character has only appeared once in One Piece so far
Why is this so special? So far, only Blackbeard uses the power of two Devil Fruits in battle. On one hand, he uses the powers of the Darkness Fruit, which allows him to essentially create a black hole that absorbs other powers.
On the other hand, he has stolen the powers of the Quake Fruit from Whitebeard. Unfortunately, how exactly this occurred was not shown. It could be that he acquired the power of the Quake Fruit just like Loki, not by eating it but through some other trick.
Actually, it is not even possible to eat two Devil Fruits. A specific case of this has never been seen in One Piece. However, Bruno, an agent of CP9, believes that the body dissolves when one eats two Devil Fruits.
Therefore, it is extremely unlikely that another person will appear who can use two Devil powers in a battle. Blackbeard actually wouldn’t have needed a second fruit, as he already possesses the strongest Devil Fruit of the Logia type. You can see the other rankings on MeinMMO: The strongest Devil Fruits of the Logia type from One Piece, where users fight with the elements
